Jacksonville, Florida couple Justin Ackerman and Savannah Combs welcomed their twin daughters, Mckenli and Kennadi, two months prematurely on May 12, 2021. Both girls were born with Down syndrome, a genetic condition caused by an extra copy of chromosome 21. While the parents were aware of the potential risk for one baby, they chose to forgo invasive genetic testing due to the miscarriage risk, embracing every prenatal appointment as a blessing. The twins’ diagnosis is extremely rare, with the odds of identical twins both having Down syndrome estimated at one in 1 to 5 million, but Justin and Savannah were overjoyed that their “little gems” were healthy and thriving.

Medical professionals describe the twins’ case as “exceedingly rare.” Dr. Pamela Trapane, director of the Duran Genetics Center, highlighted the unusual nature of their condition. Upon receiving the news, Justin became emotional, while Savannah focused on gratitude, celebrating the safe arrival of her daughters. Born prematurely, Mckenli and Kennadi required extra hospital care before going home. Despite being identical, the girls have distinct personalities: Kennadi is a “ray of sunshine,” while Mckenli shows a flair for drama, a “total diva.” By January 2022, both were making remarkable progress in physical and occupational therapy.

Savannah has become a passionate advocate for Down syndrome awareness, using the family’s TikTok channel to challenge stigma and educate the public. She emphasizes that her daughters are “no different than other babies,” highlighting their capacity for feelings, learning, and achievement—even if some milestones are reached a little later than typical. Savannah is determined to raise Mckenli and Kennadi with the same opportunities and expectations as any child, ensuring they are never treated differently because of their condition.
